Description
Item Description:Title from title screen (viewed September 24, 2014).
"A study of the ore deposits, rock alteration, stratigraphy, and structure in the most economically important zinc-lead district in the State of Washington."
Physical Description:1 online resource (v, 109 pages) : illustrations, maps + 6 plates.
Bibliography:Includes bibliographical references (pages 104-105) and index.